EP3075048A1 - Overvoltage protection for an on-board power supply of a motor vehicle during a load dump - Google Patents
Overvoltage protection for an on-board power supply of a motor vehicle during a load dumpInfo
- Publication number
- EP3075048A1 EP3075048A1 EP14796486.0A EP14796486A EP3075048A1 EP 3075048 A1 EP3075048 A1 EP 3075048A1 EP 14796486 A EP14796486 A EP 14796486A EP 3075048 A1 EP3075048 A1 EP 3075048A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- phase
- bridge rectifier
- operating mode
- short
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 claims abstract description 46
- 230000008569 process Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 230000002035 prolonged effect Effects 0.000 claims description 4
- 238000004590 computer program Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 21
- 239000003990 capacitor Substances 0.000 description 8
- 230000001939 inductive effect Effects 0.000 description 4
- 230000003213 activating effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001976 improved effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000015654 memory Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/06—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric generators; for synchronous capacitors
- H02H7/067—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric generators; for synchronous capacitors on occurrence of a load dump
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M7/219—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a bridge configuration
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/30—Conversion of ac power input into dc power output without possibility of reversal by dynamic converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/006—Means for protecting the generator by using control
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
- H03K17/082—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit
- H03K17/0822—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit in field-effect transistor switches
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
- H02P3/18—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor
- H02P3/22—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor by short-circuit or resistive braking
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/48—Arrangements for obtaining a constant output value at varying speed of the generator, e.g. on vehicle
Definitions
- active bridge rectifiers As explained, for example, in DE 10 2009 046 955 A1, however, the use of active or controlled bridge rectifiers is desirable in motor vehicles. This is the case, among other things, because, in contrast to passive or uncontrolled bridge rectifiers, active bridge rectifiers have lower power losses during normal operation.
- active bridge rectifiers In contrast to passive or uncontrolled bridge rectifiers, active bridge rectifiers have lower power losses during normal operation.
- controllable or active switching elements for such active bridge rectifier such as MOSFET, but have no integrated clamping function with sufficient robustness as conventional rectifier zener diodes and therefore can not catch the overvoltage. Therefore, additional protection strategies are required in active bridge rectifiers.
- the generator phases can be short-circuited by short-circuiting some or all of the switching elements of the upper or lower rectifier branch of a corresponding rectifier, as disclosed, for example, in DE 198 35 316 A1 and discussed in DE 10 2009 046 955 A1. This is done in particular on the basis of an evaluation of the voltage applied to the DC voltage terminals of the active bridge rectifier output voltage. If this exceeds a predetermined upper threshold value, a corresponding short circuit is initiated and the output voltage drops. If the output voltage falls below a predetermined lower threshold value, the short circuit is canceled and the output voltage rises again. This is therefore a typical hysteresis behavior. The output voltage therefore fluctuates between the upper and lower threshold values during load shedding.
- a motor vehicle electrical system or an electric machine with a bridge rectifier and a control device of such a motor vehicle electrical system which may form the basis of the present invention, will be explained in more detail below with reference to FIG.
- the present invention is based on a method for operating such a motor vehicle electrical system with a generator-operable electric machine and an active bridge rectifier connected via phase connections to the electric machine, which can be operated in a rectifier operating mode and in a short-circuit operating mode.
- the signal which characterizes the voltage applied between the DC voltage connections of the bridge rectifier does not have to represent a raw signal, for example a correspondingly measured voltage.
- a corresponding signal can also be present in particular filtered. This is necessary above all in the case of signal forms, as illustrated in FIG. 3 and the diagram 31 there.
- a brief voltage peak occurs (compare time TO), which exceeds a corresponding detection threshold VH. If an unfiltered signal were used, a short circuit just initiated would be canceled at this point in time.
- a control signal with a defined switching time is preferably used.
- a switching time used in the context of the present invention in a first method phase is referred to herein as a "first switching time”.
- an extended period for the short-circuit operating mode can also be used. In this way, the transistors are also spared.
- a duration of the at least one short-circuit operating mode may be used as a criterion of whether the signal has exceeded the upper threshold due to a cable break. Accordingly, an exceeding of a detection threshold value can also be used after the beginning of the at least one short-circuiting operating mode.
- a voltage dip occurs after the start of the short-circuit operation mode, which can also be used as a criterion for differentiation.
- Short-circuit operating mode time in particular from 0 to 1, 5 seconds, for example, from 0.5 to 1 seconds done. Overvoltages or corresponding generator powers are reduced in such a time. An extension of a short-circuit operating mode can also take place in that the lower threshold value is reduced, that is, the short-circuit operating mode is canceled in a delayed manner.
- the first and second switching times usable in the context of the present invention are in particular in a range of 10 to 200 s (first switching time) and in a range of 0 to 20 s (second switching time).
- first switching time the generator current I_generator at the time of the switching operation and the on-board inductance L_Bordnetz between the rectifier and a capacitor in the vehicle electrical system (compare capacitor C1 according to FIG.
- the induced voltage suffices to satisfy the equation
- An arithmetic unit e.g. a control device of an active bridge rectifier of a motor vehicle electrical system, is in particular program-technically configured to perform the method.
- Suitable data carriers for providing the computer program are, in particular, floppy disks, hard disks, flash memories, EEPROMs, CD-ROMs, DVDs and the like. It is also possible to download a program via computer networks (Internet, intranet, etc.).
- FIG. 1 shows a vehicle electrical system with a bridge rectifier, a generator and a control device in a schematic partial representation.
- FIG. 2 shows an arrangement for simulating load shedding in one
- FIG. 3 shows current and voltage profiles during a load shedding due to a disconnection of consumers in the form of diagrams.
- FIG. 4 shows current and voltage profiles during a load shedding due to a cable break in the form of diagrams.
- FIG. 1 shows schematically a conventional arrangement with a bridge rectifier 1 and a generator G using the example of a five-phase system.
- the bridge rectifier 1 is shown in FIG. 1 as a ten-pulse bridge rectifier which is set up to rectify a three-phase current of a five-phase generator G.
- a three-, four-, six- or seven-phase generator G and a corresponding thereto six, eight-twelve or fourteen-pulse bridge Bridge rectifier 1 are used.
- the bridge rectifier 1 is part of a vehicle electrical system 10, which is only partially shown here.
- the bridge rectifier 1 has five half bridges A to E, which are each connected via their center tap M with the five generator phases or corresponding phase terminals U to Y.
- the half bridges A to E are each connected at their ends to the DC voltage connections B + and B-, for example battery poles and / or corresponding supply lines of a vehicle electrical system 100.
- the connection B- can be connected to ground.
- the half-bridges A to E each have active switching elements AH to EH and AL to EL, which are illustrated here as a MOSFET. These are each incorporated into an upper branch H (highside) and a lower branch L (lowside) of the individual half-bridges A to E.
- phase terminals U to Y can be connected in accordance with a corresponding wiring of the active switching elements AH to EH and AL to EL in each case with one of the two DC voltage terminals B + or B-. If two or more phase connections U to Y are each connected to the same DC voltage connection B + or B-, this results in a short-circuiting of these phase connections U to Y via the respective DC voltage connection B + or B-.
- a control device 2 for all half-bridges A to E may be provided together.
- each of the half bridges A to E may have an individual control device. If the latter is the case, functions can be distributed as desired between individual control devices and a common control device 2.
- the normal operation of the bridge rectifier 1 comprises activating the active switching elements AH to EH and AL to EL in such a way that current signals applied to the phase terminals U to Y are switched through to B + and B- alternately, depending on the current direction.
- a load shedding can be detected in an arrangement shown in FIG. 1, for example based on a voltage applied to the DC voltage terminal B +.
- the control device 2 is connected via a line 3 to the DC voltage terminal B +. If a defined voltage threshold is exceeded, there is a load shedding.
- the control of the rectifier 1 in the case of a detected load shedding may include short-circuiting the phase connections U to Y in a defined manner.
- the current fed into the vehicle electrical system drops to zero, the voltage detected via line 3 drops.
- a corresponding short-circuit can be produced by simultaneously activating and thus turning on some or all of the switching elements AH to EH on the one hand or AL to EL on the other hand, ie some or all of the switching elements of a rectifier branch H or L. If such a short circuit is resolved, the current fed into the electrical system and the voltage detected via the line 3 rise again.
- Figure 2 is a circuit for simulating load shedding in one
- the circuit 20 simultaneously represents an equivalent circuit diagram of a vehicle electrical system 10, in which a generator G and a rectifier 1, for example as shown in FIG. 1 explained above, are integrated.
- a corresponding vehicle electrical system can also have generators G and / or rectifier 1 with a different phase or pulse number.
- At the generator G with the rectifier 1 in this case is a voltage UB, as illustrated by a correspondingly labeled arrow.
- the capacitors C1 and C2 and the load resistors RL1 and RL2 represent capacities or resistances of a real vehicle electrical system.
- the capacitor C1 corresponds to a capacitor at a Fremdstartstütztician, the foreign start of the corresponding motor vehicle is provided.
- the terminals F1 and F2 are provided for jump start.
- a vehicle electrical system voltage for example, to ground or the terminal F2 can be measured.
- the capacitor C1 is provided, inter alia, to buffer voltage fluctuations in the electrical system.
- the voltage across the capacitor C1 voltage is also illustrated with an arrow and designated UF.
- the generator B with the rectifier 1 on the one hand and the capacitor C1 on the other hand or even the point BN or the terminals F1 and F2 through lines with a length of typically 1, 5 to 2 meters and a cross section of, for example, 25 square millimeters separated from each other.
- the DC voltage connections of the rectifier, B + and B- are regarded as connections, which are provided directly at the rectifier.
- the terminals F1 and F2 and the point BN thereof as explained, separated by corresponding line lengths.
- Terminal B + can be measured. These are also called VB +. Due to the illustrated inductances of the lines, the time profiles of these voltages differ, if necessary, from the corresponding time profiles of "voltages on the vehicle electrical system", which, for example, at port F1 or the point BN can be measured.
- switches S1 and S2 are provided. At the beginning of a load-loss test or a corresponding simulation, both switches S1 and S2 are closed.
- the generator G or the rectifier 1 outputs a current to the vehicle electrical system, which results from the load resistances RL1 and RL2.
- a load shedding can be simulated by opening one of the switches S1 and S2.
- the opening of the switch S1 thus corresponds to a load drop to 0%, as it would be caused in reality for example by the drop in the connection cable to the generator (cable break).
- the opening of the switch S2 simulates a partial load drop, as caused by the disconnection of a larger resistive load, here RL2, in the electrical system.
- the voltage signal VB + shown in the diagram 31 can hereby be obtained by measuring one between the B + and B- of a bridge rectifier (see Figure 1).
- a corresponding voltage signal VB +, as shown in diagram 31, results in particular in battery-free operation and when a high-load consumer is switched off.
- a phase short circuit is initiated at a time T1. This initially leads to a significant voltage dip in the voltage signal VB +, which is specific as a detection feature for load shedding, resulting from a shutdown of consumers in the electrical system (but not a cable break on the generator).
- the voltage VB + decreases and reaches shortly before the time TO a lower threshold VL, here about 17 V, as described by the lower threshold of the hysteresis in the Control unit is adjustable.
- VK Another threshold, referred to here as VK, can also be used to distinguish between load shedding that results from shutting down loads on the one hand and cable breaks on the other hand.
- the threshold value VK is never reached in the diagram 31, that is, when consumers switch off, by the signal VB +, so that it can be established on this basis that there is no cable break.
- phase terminals U and V Two of the five phase voltages, as applied to the phase terminals U to Y of a corresponding electric machine or a generator G (see FIG. 1), are illustrated in the diagram 32. light. These are the voltages at the phase terminals U and V, here designated VU and VV. Due to the phase short between the times T1 and TO, the voltages drop to 0V. As already explained, the illustration in the diagrams 41 and 42 of FIG. 4 essentially corresponds to the illustration in the diagrams 31 and 32 of FIG. 3. However, FIG. 4 illustrates load drops resulting from a cable break. In the diagram 42, three voltage signals are also shown at the phase terminals of an electric machine G and here designated VU, W and VW.
- a further criterion which allows the distinction between the named causes for load shedding is the exceeding of the threshold value VK already explained with reference to FIG. Since significantly higher voltages (in this case up to 46 V) result in the case of a cable break, the threshold value VK is exceeded, so that a corresponding overshoot can be used as a further criterion for load shedding caused by cable breakage.
- the voltage VB + briefly rises significantly above the actual switching threshold when a phase short circuit is released. It then jumps back to the original voltage very quickly (as explained above about 17 V). Only then does the voltage VB + gradually increase again (ie in a period of approx. 0.6 ms) by charging the onboard power supply capacitance until the activation threshold VH for the phase short circuit is exceeded again.
- Diagram 41 shows that when the cable breaks, the voltage rises to a very high level (as mentioned, almost 46V), but then remains there (initially). This is due to the clamping effect of the avalanche breakdown of the transistors involved. If additional elements are provided for clamping in a corresponding rectifier, as basically also possible, this voltage may also be below the avalanche voltage of the transistors used.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013224106.2A DE102013224106A1 (en) | 2013-11-26 | 2013-11-26 | Surge protection for motor vehicle electrical system with load shedding |
PCT/EP2014/074133 WO2015078685A1 (en) | 2013-11-26 | 2014-11-10 | Overvoltage protection for an on-board power supply of a motor vehicle during a load dump |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3075048A1 true EP3075048A1 (en) | 2016-10-05 |
EP3075048B1 EP3075048B1 (en) | 2020-10-21 |
Family
ID=51894028
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14796486.0A Active EP3075048B1 (en) | 2013-11-26 | 2014-11-10 | Overvoltage protection for an on-board power supply of a motor vehicle during a load dump |
Country Status (5)
Country | Link |
---|---|
US (1) | US20160294181A1 (en) |
EP (1) | EP3075048B1 (en) |
CN (1) | CN105745806B (en) |
DE (1) | DE102013224106A1 (en) |
WO (1) | WO2015078685A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013208968A1 (en) * | 2013-05-15 | 2014-11-20 | Robert Bosch Gmbh | Motor vehicle electrical system with active bridge rectifier and overvoltage protection during load shedding, rectifier arrangement, associated operating method and means for its implementation |
DE102014200503A1 (en) * | 2014-01-09 | 2015-07-09 | Robert Bosch Gmbh | Method for operating an active rectifier, circuit arrangement and computer program |
DE102015202437A1 (en) * | 2015-02-11 | 2016-08-11 | Robert Bosch Gmbh | Method for operating an active converter connected to an electrical machine and means for its implementation |
DE102015116929B4 (en) | 2015-10-06 | 2022-12-08 | Robert Bosch Gmbh | Method for operating a steering system of a motor vehicle |
DE102015219674A1 (en) * | 2015-10-12 | 2017-04-13 | Continental Automotive Gmbh | Vehicle electrical system |
DE102015223211A1 (en) * | 2015-11-24 | 2017-05-24 | Robert Bosch Gmbh | Method for detecting a fault in a generator unit |
DE102016204224A1 (en) * | 2016-03-15 | 2017-09-21 | Robert Bosch Gmbh | Method for operating an active bridge rectifier in a motor vehicle and means for its implementation |
DE102016105947A1 (en) * | 2016-03-31 | 2017-10-05 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Electric motor with active braking |
FR3091053B1 (en) * | 2018-12-20 | 2021-01-15 | Valeo Equipements Electriques Moteur Service Pi | Method of controlling a rotating electrical machine and corresponding control system |
DE102020130214A1 (en) * | 2020-11-16 | 2022-05-19 | Seg Automotive Germany Gmbh | Method and short circuit device for operating a generator unit |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19835316A1 (en) | 1998-08-05 | 2000-02-10 | Bosch Gmbh Robert | Controlled rectifier bridge with surge protection |
US6803748B2 (en) * | 2003-02-03 | 2004-10-12 | Delphi Technologies, Inc. | System and method for controlling load dump voltage of a synchronous machine |
DE102008041099A1 (en) * | 2008-08-07 | 2010-02-11 | Robert Bosch Gmbh | Method for protecting electronic component against over voltage of supply voltage of electrical system of motor vehicle, involves activating transistor and diode to limit voltage, and deactivating transistor and diode after preset interval |
DE102009046955A1 (en) * | 2009-11-23 | 2011-05-26 | Robert Bosch Gmbh | Avoidance of load shedding overvoltages in synchronous rectifiers |
FR2962606B1 (en) * | 2010-07-09 | 2020-09-25 | Denso Corp | ENHANCED ROTATING ELECTRIC MACHINE TO PROVIDE PROTECTION AGAINST POWER INTERRUPTIONS |
DE102011076722B4 (en) * | 2011-05-30 | 2019-11-07 | Robert Bosch Gmbh | Method for current detection in a multiphase machine |
US9444380B2 (en) * | 2011-12-15 | 2016-09-13 | Mitsubishi Electric Corporation | Power converter and control method for power converter |
JP5716711B2 (en) * | 2012-07-20 | 2015-05-13 | 株式会社デンソー | Switching element drive circuit |
DE102013208968A1 (en) * | 2013-05-15 | 2014-11-20 | Robert Bosch Gmbh | Motor vehicle electrical system with active bridge rectifier and overvoltage protection during load shedding, rectifier arrangement, associated operating method and means for its implementation |
DE102013213802A1 (en) * | 2013-07-15 | 2015-01-15 | Robert Bosch Gmbh | Overvoltage protection for active rectifiers during load shedding |
DE102013223316A1 (en) * | 2013-11-15 | 2015-05-21 | Robert Bosch Gmbh | Surge protection for motor vehicle electrical system with load shedding |
DE102014200503A1 (en) * | 2014-01-09 | 2015-07-09 | Robert Bosch Gmbh | Method for operating an active rectifier, circuit arrangement and computer program |
-
2013
- 2013-11-26 DE DE102013224106.2A patent/DE102013224106A1/en not_active Withdrawn
-
2014
- 2014-11-10 WO PCT/EP2014/074133 patent/WO2015078685A1/en active Application Filing
- 2014-11-10 EP EP14796486.0A patent/EP3075048B1/en active Active
- 2014-11-10 CN CN201480064284.9A patent/CN105745806B/en active Active
- 2014-11-10 US US15/037,279 patent/US20160294181A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US20160294181A1 (en) | 2016-10-06 |
EP3075048B1 (en) | 2020-10-21 |
CN105745806A (en) | 2016-07-06 |
DE102013224106A1 (en) | 2015-05-28 |
CN105745806B (en) | 2018-10-16 |
WO2015078685A1 (en) | 2015-06-04 |
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